Hello,
i'm in 11gR2 Enterprise edition 3 nodes Rac. We always have done backups using only one node. Last night we have used two nodes without apparently any error, but the query about the backup return a different size for the backup.
The size of backup (with 2 nodes) is the the middle of the day before when we used only one node, and the database is the same (obviously)
And the backup didn´t last less...how we expected . ASH report don´t display lower db_time for backup work neither , when we sum the sessions in the two different nodes, Awful result maybe!!
37848 DB FULL 11/10/2015 00:31:21 382.39M 436.82M 4.82T 4.22T 03:12:39
37861 DB FULL 11/11/2015 00:31:22 171.22M 196.63M 2.28T 1.98T 03:22:32
Anyone have any idea why ? I don´t have read anything in the documentation about this behavior, only the advantage of use more than one node... ??
thanks and regards.
Francesco